What do reflection and refraction have to do with our world today? Could this be the reason we see our shadow, and when we take pictures we see the image of ourselves.
Vocabulary
Reflection- The return of light, heat, sound, and other particles or waves after striking a surface.
Virtual Image-An image formed through reflection or refraction that can be seen by an observer but cannot be projected on a screen because light from the object does not actually come to a focus.
Normal-A line perpendicular to a surface.
Law Of Reflection-The angle of incidence for a wave that strikes a surface is equal to the angle of reflection.For both partially and totally reflected waves.
Angle Of Incidence-Angle between an incident ray and to the normal surface.
Angle Of Reflection-Angle between a reflected ray and the normal to a surface.
Diffuse Reflection-The reflectiono of waves in many directions from rough surface.
Reverberations-Persistence of a sound, as in an echo, due to multiple reflections.
Refraction-The Change in directions of a wave as it crosses the boundary between two media in which the wave travels at different speed.
Wave Fronts-The crest, trough, or any continuous portion of a two-dimensional or three-dimensional wave in which the vibrations are all the same way at the same time.
Mirage-A floating image that appears in the distance and is due to the refraction of light in Earth's atmosphere.
Dispersion-The separation of light into colors arranged according to their frequency, by interaction with a prism or diffraction grating.
Total Internal Refelection- The 100% reflection (with no transmission) of light that strikes the boundary between two media at an angle greater than the critical angle.
Critical Angle- The minimum angle of incidence for which a light ray is totally reflected within a medium.
Optical Fibers-A transparent fiber, usually of glass or plastic, that can transmit light down its length by means of total internal reflection.
Reflection
Reflection can be two types of elements. Reflection on light and reflection on sound.Reflection can be seen when a wave reaches a boundary between two media which cause for a idenical image.Light is very senitive when you look at the sun it is very hard to focus on the sun because of the rays of the angle and how they are viewed in the light.The Law of Reflection are normal,angle of incidence, and angle of reflection.These laws tell why do we see images in a shadow or at the same time.As further as the light the smaller the shadow will appear, light distance travels with an object.Angle of Incidience is properites of waves
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Table of Contents
Reflection and Refraction
What do reflection and refraction have to do with our world today? Could this be the reason we see our shadow, and when we take pictures we see the image of ourselves.
Vocabulary
Reflection
Reflection can be two types of elements. Reflection on light and reflection on sound.Reflection can be seen when a wave reaches a boundary between two media which cause for a idenical image.Light is very senitive when you look at the sun it is very hard to focus on the sun because of the rays of the angle and how they are viewed in the light.The Law of Reflection are normal,angle of incidence, and angle of reflection.These laws tell why do we see images in a shadow or at the same time.As further as the light the smaller the shadow will appear, light distance travels with an object.Angle of Incidience is properites of waves
.